android_studio.txt

download and install android studio
download sdk-tools-windows.zip
extract to dir c:/android/sdk, no spaces in path
from sdk dir in cmd, run  
.\tools\bin\sdkmanager.bat --proxy=http --proxy_host=<proxy_host> --proxy_port=<proxy_port> --verbose --list
note down packes to be installed

run the commnd to install the packages
.\tools\bin\sdkmanager.bat --sdk_root=. --proxy=http --proxy_host=<proxy_host> --proxy_port=<proxy_port> --verbose --install tools "build-tools;28.0.3" docs emulator "platforms;android-28" "sources;android-28" "system-images;android-28;default;x86_64"

other packeges can be downloaded directly in IDE using SDKManage